Hose coupling



C. E. LANG HOSE COUPLING Dec. 6, 1949 Filed Oct. 29, 1946 INVENToR.

UML ELANG'.

Arron/Ex Patented Dec. 6, 1949 UNITED STATES PATENT OFFICE nose oovrLING Carl EYLanz, Oakland, Calif. Appucaaon ocftber ze, 194s, semi No. 706,321

'z claims. (ci. 2x5-174) The present invention relates to hose cou;V lings and more particularly to a readily detachable coupling having parts which may be spun or drawn from sheet metal. Y

An object of the invention is to provide asimple and practical separable hose coupling, the' parts of which may be drawn or spun from sheet metal in a simple and inexpensive manner.

Another object of the invention is to provide a coupling of the readily separable type which is simple and practical in construction.

Another object of the invention is to provide a coupling by which a hose may be conveniently attached to a source of uid supply without special tools and in a rapid and enicient manner.

A further object of the invention is to provide a separable hose coupling of inexpensive construction having parts that are of spun or drawn sheet metal and of interlocking construction, whereby when applied to a service outlet the coupling may be firmly locked in place in a novel manner.

Other objects and advantages of the invention will be in part evident to those skilled in the art and in part pointed out hereinafter in the following description taken in connection with the accompanying drawing, wherein there isshown by way of illustration and not of limitation a preferred embodiment of the invention.

In the drawing:

Figure 1 is an enlarged perspective view of a portion of my improved coupling with a portion broken away to reveal the interior construction,

Figure 2 is an enlarged longitudinal sectional view of the complete coupling with the parts in coupled relation, fr

Figure 3 is a fragmentary sectional view similar to Figure 2 and showing the parts in an uncoupling position,

Figures 4 and 5 show two different forms of one of the novel parts of the coupling, andi-V,

Figure 6 is a sectional view showing a preferred form of gasket.

For a consideration of what I believe to be my invention reference is now made to the drawing where in Figure 1 there is shown the female portion of a complete coupling. As here illustrated this portion of my coupling is comprised of a tubular member I provided with an outwardly extending flange II at one end and a plurality of longitudinally and rearwardly extending flexible tongues I2 along its sides. These tongues I2 also have upset ends I3 which provide portions thereof that extend inwardiy and outwardly from ber I0. In this showing the tubular member III is secured in coaxial relation upon the end of a fluid supply conduit I4 by means of a knurled and internally threaded collar I5 and interposed between the end of this fluid supply conduit I4 and the ilange II of the tubular member I0 there is a gasket IS of special construction as will hereinafter appear. Surrounding the tubular member It there is a sldable sleeve Il which is flanged inwardly at its ends as at I8 and I9 so as to provide a clearance for the outwardly extending portions formed by the upset ends I3 of the tongues I2. Intermediate its ends the slidable sleeve I'I is also provided with a constricted portion 20 which is adapted to engage the externally disposed portions of the upset ends I3 of the tongues I2 when inone of its positions and thus hold the tongues l2 against outward flexing so as to render the inwardly disposed portions at the upset ends I3 thereof operable to lock a cooperating male portion of the coupling in sealing relation with the gasket I6.

Upon now referring to Figures 2 and 3 of the drawing it will be noted that the gasket I6 has an outwardly extending annular flange 2I at one end which is adapted to be clamped between the end of the fluid supply conduit I4 and the ange II forming upon the tubular member I0 and extending to one side of this flange 2l the gasket I6 has a cylindrical portion 22 which extends into the tubular member'II) and terminates adjacently upset ends I3 of the ngers I2. At its extending end the cylindrical portion 22 of the gasket I6 is of a length suilcient to cause it to be compressed when engaged by the end of a tubular male coupling member 23 which carries a threaded portion 24 of standard hose coupling dimensions to which a hose fitting 25, here shown by dot and dash lines, may be attached. In this showing the male coupling member 23, including its threaded portion 24is shown as spun from a single integral length of tubing and at its inner end it has a constricted portion 25 of a diameter corresponding substantially to the internal -diameter of the gasket I6. This constricted portion 26 serves to form an outwardly liaring cup-like seat 21 at the end of the male coupling member 23 into which a correspondingly tapered adjacent end of the gasket I6 is adapted to seat to form a fluid tight seal when the male and female coupling members III and 23 areA brought into interlocking relation with each other. In `addition to forming the outwardly ilaring seat 21 at the end of the male coupling member 23 for the gasket the inner and outer surfaces of the tubular mexnu Il the constriction 26 also provides an annular members when in use.

its outwardly flaring seat 21 in sealing engagel ment with the gasket I6 the parts can be loolredl in this position by merely moving the slidable sleeve I1 to the left as viewed in Figure 2 of the drawing. This will bring the constrict'ed portie-rrV thereof over the outward-ly and externally extending portions at the upset ends I3 of the tongues I2 and thus lock the parts together-and@ prevent an inadvertent' separation of the coupling To 4this lfatter end it will be noted that the constricted. DortionZll of the slidable sleeve I1 isc-inclined slightly along its inner surface so that it' will tend to slideto the left, as here viewed,A and be held inA its locking positionr by the outward pressure exerting action of the fingers I2, Now should it be desired to disconnect the coupling members,- the operator will only be required to move the' slidable sleeve the male coupling member 23- wi-ll cause the iingers I2 to be flexed outwardly as the-flared seat forming portion 2-1 thereof is pulled thereunder.

s At this pointv it willbe noted that the flange I8 at the inner end' of thepslidable sleeve I`1 acts as a stop to prevent a complete removal of the sleeve I1 from the tubular member I0. At the same time this ange I8 wi-ll also sei-veto center` the slidable sleeve I1 over the tubular member I Q. The flanged portion I9 at the other end ofthe sleeve I 1 terminates as a cylinder which will serve to center this end of the sleeve upon the tubular member I0. y

As shown in Figures: 4 and 5 of the drawings the construction of the tubular member Ie of my. improved coupling may take diierent forms. VFlor example, as shown in Figure .4 andV as described above the tongues I2 may beiformect asan integral part of the tubular' member Ill` by saw cuts or punching so that the tonguesiIZ with their upset ends I3 may be flexed independently of the tubular portion of this member'. In practice it is considered that at least three of these tongues I2 will be provided ineach coupling but. it will be understood that any other numbermight be employed. In another form, as is shown in. Figure 5 of the drawing, thetulbular 12am-ale.V portion of my coupling. may be formed of a tubular member 28 having a flange 23 at one endand a. plurality of elongated slots 30 arranged around its,

cylindrical portion through which flexibletongues 3| formed upon a sepa-rate; cylindrical member v 32, asl above described, may be mounted. ,In this latter instance the flange 29 at oneend of the compressive stress as when the male and female parts of the coupling are engaged. These collapsible portions, only one of which is here shown, are arranged along the cylindrical portion 22 of the gasket I6. With this construction it will be seen that when the gasket is compressed length- Wise the collapsible portion 34 will tend to bow inwardly, as shown in this figure of the drawing,

-and thereby slightly constrict the diameter of the gasket I6 at this point. Then when the coupling is in use and a fluid under pressure is vpassed therethrough this collapsed portion 34 will be subjected to an outward pressure that will tend to return it to its original form and thus extend the cylindrical portion 22 and thus further insure a good sealing engagement with the flaring seat 21 at the end of the male member 23.

An important feature of the present invention and one which provides extreme economy and simplicity in manufacture is that all of the parts of my coupling except the retaining collar I5 and the sealing gasket I6 can be drawn from sheet metal and/or spun from tubular stock, and while i have, for the sake of clearness and in order to I 1 to the right as here'viewed.` rIlhenapull upon disclose the invention so that the same can be readily understood, described and illustrated specific devices and arrangements, I desire to have it understood that this invention is not limited to the specic means disclosed, but may be embodied in other ways that will suggest themselves to persons skilled in the art. It is believed that this invention is new and all such changes as .come within the scope of the appended claims are to be considered as part of this invention. Having thus described my invention, what I claim and desire to secure by Letters Patent is: .1. In a separable hose coupling, the combination of a cylindrical member adapted to be mounted in co-extensive relation at the end of a supply conduit, a flanged sealing gasket adapted to be secured to said supply conduit by said cylindrical member and having a cylindrical portion disposed within and extending toward the outer Va flared end adapted to project into said cylinend of Said cylindrical member, a cooperating coupling member for the end of a hose having drical member and encompass the extending end of said sealing gasket, a flexible locking means carried by said cylindrical member adapted to snap into locking engagement with the flared end of said cooperating coupling member and retain it in engagement with said gasket, and means .carried by said cylindrical member adapted when in one position to engage said locking means and hold said cooperating coupling member in secured t, engagement with said gasket and when in an- 'other position permit a withdrawal of said cooperating coupling member from said cylindrical member by a pulling force sufficient to flex said locking means into an inoperative position.

v2. In a separable hose coupling, the combination of a cylindrical member adapted to be mounted in co-extensive relation at the end of tubular member 28 will operate toprevent axial.`

movement of the' cylindrical member 32 ,and at its other end the cylindrical member 28 maybe secure the member such. as rubber, and specially shaped with one or more collapsible portions- 34 which will; bow,

a supply conduit, a sealing gasket disposed within 65.

.andV extending in spaced concentric relation tongue carried by member and extend over the end of said sealing gasket, a longitudinally extending iiexible locking said cylindrical member adapted to normally ex inwardly and engage said cooperating coupling member and retain it inengagement with the end of said gasket,v and inwardly when the gasket I6 is subjected to a 75 means carried by said cylindrical member adapted when in one position to hold said flexible locking tongue into positive retaining engagement with said cooperating coupling member and when in another position to permit a flexing of said locking tongue and a withdrawal of said cooperating coupling member from said cylindrical member.

3. In a separable hose coupling, the combination of a fixed cylindrical member adapted to be mounted in co-extensive relation at the end of a supply conduit, a sealing gasket having a compressible cylindrical portion disposed within and extending toward the outer end of said cylindrical member, a cooperating male coupling member adapted for mounting upon the end of a hose having a tubular portion adapted to project into said cylindrical member and encompass theI compressible portion of said sealing gasket, a plurality of longitudinally extending flexible tongues carried by said xed cylindrical member adapted to normally flex inwardly to engage the tubular portion of said cooperating male coupling member and retain it in compressing engagement with the end of said gasket, and means slidably mounted upon said iixed cylindrical member adapted when in one position to hold said ilexil ble retaining tongues in locking engagement with the tubular portion of the said cooperating male coupling member and when in another position to permit a withdrawal of said cooperating male coupling member from said fixed cylindrical member.

4. In a separable hose coupling, the combination of a cylindrical extension member adapted to be mounted in co-extensive relation upon the end of a fluid supply conduit, a sealing gasket disposed between said cylindrical extension member and said conduit having a compressible portion extending into said cylindrical extension member, a cooperating coupling member adapted to be mounted upon the end of a length of hose and having a flared end adapted to project into said cylindrical extension member and provide a cup-like seat for the end of the compressible portion of said sealing gasket, a plurality of longitudinally extending flexible retaining tongues carried by said cylindrical extension member adapted to normally engage behind the flaring end of said cooperating coupling member and retain it in cupping engagement with said gasket, and means slidably mounted externally upon said cylindrical member adapted when in one position to hold said flexible retaining tongues in fixed engagement of the flared end with the said cooperating coupling member and when in another position to permit an outward flexing of said tongues and a withdrawal of said cooperating coupling member from said cylindrical extension member.

5. In a separable hose coupling, the combination of a cylindrical extension member adapted to be mounted in fixed co-extending relation upon the end of a uid supply conduit, a sealing gasket having a flanged portion disposed between said cylindrical extension member and said conduit and a compressible cylindrical portion extending into said cylindrical extension member, a cooperating coupling member adapted to be mounted upon the end of a, length of hose and having a ared end adapted to project into said cylindrical extension member and over the end of the compressible portion of said sealing gasket, and a plurality of longitudinally extending flexible retaining tongues having upset ends carried by said cylindrical extension member adapted to ilex inwardly behind the flaring end of said cooperating coupling member and retain it in compressing engagement with said gasket.

6. In a separable hose coupling, the combination of a tubular female member having a radially extending ange at one end adapted to be clamped in co-axial outwardly extending relation upon the end of a fluid supply conduit, a plurality of rearwardly extending tongues carried by said tubular female member having their ends upset to provide portions thereof extending internally and externally of said tubular member, a compressible gasket having a flange at one end adapted to be clamped between the end of said uid supply conduit and the flange upon said tubular member and also an extending cylindrical portion terminating within said tubular member at the upset ends of said tongues, a tubular male member carried by the end of a length of hose having a constriction near its end forming an outwardly flaring inlet thereto and adapted to extend into said tubular member beyond the upset ends of said tongues, and a slidable cylindrical sleeve mounted externally upon said tubular member having a flange at one end engageable with the upset ends of said tongues to prevent its removal from said tubular member and a constricted portion intermediate its ends adapted to engage the upset ends of said tongues and flex them into locking relation with the flaring inlet of said male member and hold the latter member in compressing engagement with said gasket.

7. In a separable hose coupling, the combination of a tubular member adapted to be secured in co-axial outwardly extending relation upon the end of a fluid supply conduit, a plurality of tongues carried by and extending longitudinally of said tubular member with their ends upset to provide portions projecting internally and externally of said tubular member, a gasket having a collapsible portion extending into said tubular member and terminating at the upset ends of said tongues, a tubular male member adapted to be mounted upon the end of a length of hose having a constricted portion near its end forming an outwardly flaring seat for the end of said gasket and an interlocking surface for the internally disposed portions at the upset ends of said tongues, and a cylindrical sleeve slidably mounted externally upon said tubular member having a constricted portion intermediate its ends adapted to engage the externally disposed portions at the upset ends of said tongues and hold them in locking relation with the interlocking surface formed at the end of said male member when the latter member is in engagement with said gasket.

CARL E. LAN G.

REFERENCES CITED FOREIGN PATENTS Country Date France 1904 Number 

